ASTM A106/A106M Gr.B - Txheem Specification rau Seamless Carbon Steel Yeeb Nkab rau Siab -Tub Txib Kev Pabcuam
ASTM A106 Qib Byog covhwm specificationseamless carbon steel yeeb nkab npaj rausiab - kub thiab siab - kev pabcuam siab, dav siv nyob rau hauv fais fab nroj tsuag, refineries, thiab txheej txheem industries.
Cov yam ntxwv tseem ceeb
| Feature | Kev piav qhia |
|---|---|
| Khoom siv | Carbon Steel (Nyob zoo Grain Practice) |
| Qib | Gr. A(qis zog),Gr. B(feem ntau),Gr. C(lub zog siab tshaj) |
| Kev tsim khoom | Seamless (SMLS) nkaus xwb- Tsis muaj welded hom |
| Kev siv thawj zaug | Siab -kub/siabKev xa tawm kua dej - chav, dej, roj, roj |
Qib B yuav tsum muaj
Tshuaj muaj pes tsawg leeg
| Element | Kev sib xyaw (%) |
|---|---|
| Carbon (C), max | 0.30 |
| Manganese (Mn) | 0.29 - 1.06 |
| Phosphorus (P), max | 0.035 |
| Sulfur (S), max | 0.035 |
| Silicon (Si) | Ntau dua lossis sib npaug li 0.10 |
| Nco tseg | Ua los ntawmzoo grain xyaum |
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Tensile zog, min | 415 MPa (60,000 psi) |
| Yield zog, min | 240 MPa (35,000 psi) |
| Elongation (hauv 50mm), min | Nws txawv nrog phab ntsa thickness |
Kev tsim khoom & Kev kho cua sov
Txheej txheem Flow:
Hlau Ua → 2. Pipe Ua (Seamless) → 3. Kev kho cua sov → 4. Kev Ntsuas & Kev Tshuaj Xyuas
Kev kho cua sov xaiv:
Kub- tiav lawm(tsis muaj kev kho cua sov tom qab)
Li qub
Normalized thiab Tempered
Annealed
Nco tseg:Yuav tsum tau kho cua sov yog tias txias - kos qis dua qhov kub thiab txias.
Kev txwv kub
Pom zoo Qhov Kev Pab Cuam Siab Tshaj:
| Qhov xwm txheej | Kub txwv |
|---|---|
| Kev Pabcuam General | Mus txog425℃(800℃F) |
| Nrog De- ntsuas | 425-540℃(800-1000℃F) |
| Tsis pom zoo | Saum toj no540℃(1000℃F) |
Vim li cas qhov txwv?Cov pa roj carbon steel poob lub zog thiab raug rau graphitization thiab oxidation ntawm qhov kub siab dua.
Kev xeem yuav tsum tau
| Kuaj | Kev xav tau |
|---|---|
| Hydrostatic Test | Yuav tsum tau rau tag nrho cov yeeb nkab |
| Nondestructive Electric Test | Optional (tab sis feem ntau rau kev pabcuam tseem ceeb) |
| Tensile Test | Ib qho cua sov / ntau |
| Flattening Test | Yuav tsum muaj rau qhov ntau thiab tsawg tsawg dua lossis sib npaug rau NPS 2 |
| Khoov Test | Rau qhov ntau thiab tsawg tsawg dua lossis sib npaug rau NPS 2, thaum thov |
| Hardness Test | xaiv tau |
Cov ntawv thov siv
Primary Industries:
Lub zog tiam
Main chav kab
Feed dej kab
Boiler raj (thaum teev)
Roj & Roj Refineries
Txheej txheem kav
Cov kab siv hluav taws xob
Kev pabcuam Hydrocarbon
Petrochemical cog
Siab - cov kab txheej txheem siab
Chav faib
Cov nroj tsuag muaj
High -kub cua sov tshuab
Compressed cua kab (kev pabcuam tseem ceeb)
Kev sib piv tseem ceeb nrog A53 Gr.B
| Parameter | ASTM A106 Gr.B | ASTM A53 Gr.B |
|---|---|---|
| Kev tsim khoom | Seamless nkaus xwb | Seamless & welded |
| Kev Pabcuam Kub | Siab -kub(txog 540 degree) | Txwv kub(max ~ 430 degree) |
| Chemistry Control | nruj dua(Si min, P/S txwv) | Tsawg nruj |
| Grain Structure | Yuav tsum muaj kev xyaum ua zaub mov zoo | Tsis tau teev tseg |
| Nqi | Siab dua | qis |
| Kev siv thawj zaug | Tseem ceeb heev -temp/pressure | Lub hom phiaj dav dav / qis -siab |
Kev txiav txim siab tsim qauv tseem ceeb
1. Corrosion Allowance
Feem ntau 3.0 hli (1/8 ") ntxiv rau xam phab ntsa thickness
Ib puag ncig nruj dua tuaj yeem xav tau nyiaj ntau dua
2. Kev ntsuas siab
Siv Barlow tus qauv nrog cov qauv tsim qauv (ASME B31.1 / B31.3):
ntawv nyeem
t = (P × D) / (2 × S × E + P × Y)
Qhov twg S=tso cai rau kev ntxhov siab los ntawm ASME Tshooj II, Ntu D
3. Kev xav tau ntawm vuam
Preheat often required for thicker walls (>19 hli)
Tshaj tawm -Weld Heat Treatment (PWHT) rau qee qhov tuab
Siv cov khoom sib txuam (E7018 rau SMAW)
Ordering Specifications
Ua kom tiav cov lus piav qhia yuav tsum muaj xws li:
Txheem:ASTM A106/A106M
Qib: B
Loj:NPS thiab Teem caij (piv txwv li, NPS 8, Teem sijhawm 40)
Ntev:SRL (Ib leeg Random Length ~ 6m) los yog DRL (Ob chav Random Length ~ 12m)
Kev kho cua sov:Qhia meej yog tias lwm yam tshaj li tus qauv
Xaus:Plain kawg, beveled kawg (rau vuam), los yog threaded & coupled
Cov Lus Qhia Ntxiv:Piv txwv li, S1 - Normalizing, S2 - Tensile Tests, thiab lwm yam.
Quality & Certification
Cov ntaub ntawv yuav tsum tau:
Mill Test Certificate(MTC) nrog tus lej xov tooj cua sov traceability
Tshuaj ntsuam xyuasrau txhua qhov cua sov
Mechanical test results
Hydrostatic xeem siabsau tseg
Yeem Ntawv Pov Thawj:
ASME SA106- Rau ntu I thiab VIII kev tsim kho
PED/CE Marking- Rau cov lag luam nyob sab Europe
NORSOK- Rau cov ntawv thov offshore
Kev txwv & ceeb toom
⚠️ Cov kev txwv tseem ceeb:
Tsis yog rau qis-kev pabcuam kub(siv A333 Gr.6 rau<-45°C)
Tsis yog rau cov kev pabcuam corrosivetsis muaj kev tiv thaiv corrosion zoo / kev tiv thaiv
Tsis yog rau kev pabcuam cyclic / kub hloov pauvtsis muaj zog tsom xam
Graphitization txaus ntshaisaum toj no 425℃nrog ntev - raug
Oxidation / scalingua qhov tseem ceeb tshaj 540 degree
Kev lag luam Standards Reference
| Daim ntawv thov | Txoj Cai Tswjfwm |
|---|---|
| Fais fab nroj tsuag | ASME B31.1 - Fais Fab Piping |
| Refineries | ASME B31.3 - Txheej Txheem Piping |
| Boiler External Piping | ASME Tshooj I |
| Cov nkoj siab | ASME Section VIII |
Kab hauv qab:ASTM A106 Gr.Bmus- mus rau seamless carbon steel yeeb nkabrau kev txhim khu kev qha, kev nyab xeeb kev ua haujlwm hauv kev xav tau siab -kub muaj kev pabcuam uas muaj kev ntseeg siab yog qhov tseem ceeb. Ib txwm qhia A106 (tsis yog A53) rau chav ua haujlwm siab tshaj 200℃lossis siab - kev pabcuam hydrocarbon.
